Means for the control of the flow of air in water-tanks.



G. SINCLAIR.

MEANS FOR THE CONTROLYOF THE FLOW OF AIR IN WATER TANKS..

APPLICATlON FILED JULY 23.1914.

1 ,1 59,721 Patented Nov. 9, 1915.

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UNITED STATES PATENT OFFICE.

GEEORGE SINCLAIR, OF ST. PAUL, MINNESOTA, ASSIGNOR BY DIRECT AND MESNiEASSIGNMENTS, TO CLIFFORD L. NILES, OF ANAMOSA, IOWA.

MEANS FOR THE CONTROL OF THE FLOW OF AIR IN WATER-TANKS.

Specification of Letters Patent.

PatentedNov. 9, 1915.

Application filed July 23', 1914. Serial No. 852,741.

T all "whom it may concern:

Be'it known that I, GEORGE. SINCLAIR, a citizen of the United States,residing at St.

' Paul, in the county of Ramsev and State of of the air Minnesota, haveinvented a new and useful Improvement in 'Means for the Control of theFlow of Air in lVater-Tanks, of which the following is a specification.

My invention relates to improvements in means for thecontrol of the flowof air in watertanks. lVhen it is desired to pass .air through a volumeof water to purify and cool the air, I have found in practice that iscompressed before entering the normal temperis materially water andallowed to cool to 'a'ture before its pressure lowered and after beingreleased in the Water, it will either raise the temperature of the wateronly moderately or maintain it at normal temperature, whereby a smallvolume of water can be used to cool and purify a very large amountofair.

While it is not unusual to pass air through water, I am not aware of anydevices for cooling air and regulating its flow. To have a successfullyoperating device I have also found that it must be readily adjustablefor different temperatures, that is diiferent tem-. peratures of airintroduced into the device so as to give off a uniform temperature fromthe device.

There are numerous uses to which my device can be used where a purifiedlow temperature air is desired one of which being of ordinaryconstruction mounted on a suitable frame B. The tank A in use is adaptedto be filled about two fifths full of'water by a pipe 2 which is closedby a valve 3, and a drain pipe 4 in the bottonrof the tank having ashut-off valve 5, whlch can be used to drain the tank A when desired.

An ordinary safety valve 6' isfitted to the tank A and a pressure gage 7indicates the pressure in the tank. To assist the operator, athermometer 8 is also fitted to the tank A. Air is introduced into thetank A through a perforated pipe 9 having holes 12 and extending alongthe bottom of the tank and which or air pump (not shown) by-the pipe 10.A suitable valve 11 in the pipe 10 prevents any back pressure on thepump or blower. The openings 12 in the pipe 9 are opened and closed by aclose fitting sleeve 13 extending along the inside of the pipe 9 whichhas openings let of the same size as the openings 12 and whichcorrespond with said openings when the sleeve 13 is drawn back andforth. The sleeve 13 is operated by a handle 15 which is rigidly securedto one end of a stem 16 having a threaded portion 17, and a shoulder 18formed on its free end being free to 19 which is secured to the end ofthe sleeve 13. A nut 20 which engages the shoulder 18 holds the stem inthecoupling 19.

The threaded portion 17 of the stem 16 carries the nut 21 which is rigidwith the tank A-and is secured to the collar 22 which holds one end ofthe pipe 9, the other end of the pipe 9 being secured in the tank A.Thus when the handle 15 is turned in one direction it will draw thesleeve forward and open the holes 12 while if turned in the oppositedirection it will force the sleeve is connected to a blower turn in thecoupling- 24 can be set so as to indicate to the operator the open andclosed position of the holes 12.

In operation when a low temperature purified air is desired the tank Ais filled about two fifths full of',clear cold water and Valves 3, 5 andclosed. Air is then blown or pumped through pipe 10 into the pipe 9. Theholes 12 are set at the desired opening by the handle 15 and the airpasses out of the same and through the water in the tank A. Pressure inginto the tank until it is cooled and after it is reduced in temperatureand purified by the water it can at any time be released through pipe 25to the cream tanks or wherever it is to be used.

An important feature of my invention is in the ready tlClJUSllIIlGIlt ofthe size of the .10'5

is maintained by the air passbefore it enters the water, as it issurrounded by a lower temperature. This is an advantage because the airwhen reduced in temperature before entering the tank will not thereforeraise the temperature .of the water to as high a temperature.

In accordance with the patent statutes 1 have described the principlesof operatlon of my invention together with the apparatus which I nowconsider to represent the best embodiment thereof, but I desire to haveit understood that the construction shown is only illustrative and thatthe invention can be carried out by other means and applied to usesother than those above set forth within the scope of the followingclaims.

Having described my invention, what I claim as new and desire to protectby Let ters Patent is 1. Apparatus of the class set forth, coinprisingin combination, a receptacle adapted to contain a cooling liquid, meanshaving orifices adapted to project compressed air into said coolingliquid and means for regulating the size of said orifices.

2. In apparatus of the class set forth, a receptacle adapted to containa cooling liquid, means having orifices adjustable in size to injectcompressed air into said cooling liquid, means for indicating the sizeof said able in said pipe and means orifices, and means for conductingthe air which has been. released in said coolingliquid from saidreceptacle.

3. In apparatus of the class set forth, a receptacle adapted to hold acooling liquid, a pipe projecting into the bottom of said receptaclehaving perforations adapted to admit compressed air into the liquid insaid receptacle, a sleeve longitudinally movfor moving said sleeve insaid pipe to regulate the size of the passages leading into saidreceptacle.

4. In apparatus of the class set forth, a receptacle i adapted to hold acooling liquid, a pipe having a perforated end adapted to admitcompressed air into said cooling liquid, a sleeve longitudinallyslidable in said pipe having perforations adapted to coincide with theperforations in said r pipe, means for moving said sleeve longitudinallyin said pipe to regulate the size of the passages leading into saidreceptacle and a dial associated with said adjusting means forindicating the amount of adjustment. v In testimony whereof, I havesigned my name to'jthis specification in the presence of two subscribingwitnesses.

' GEORGE SINCLAIR.

Witnesses STELLA L. 'Wasonnnnnnona, F. G. BRADBURY.

